turnip: Fix leak of autotune fence BOs, add BO count/size debugging.
If we're reusing the submission data, then reinitializing its CS would leak its old BO.
Fixes: #7281 (closed). glmark2 -b texture goes from 277fps to 1268.
If we're reusing the submission data, then reinitializing its CS would leak its old BO.
Fixes: #7281 (closed). glmark2 -b texture goes from 277fps to 1268.